"Even" does not mean "safe"

In a recent Blackburne Shilling Jerome Gambit, Bill Wall and his opponent headed for a topical position evaluated as roughly even. Bill then showed that there was still a lot of danger in the position.

billwall  - apollyon2010
Chess.com, 2010

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4

The Blackburne Shilling Gambit.

4.Bxf7+

The Blackburne Shilling Jerome Gambit.

4...Kxf7 5.Nxe5+ Ke6

6.c3

A challenge.

6...Kxe5 7.cxd4+ Kxd4

This move gives White a slight edge. After the retreat 7...Ke6 followed by 8.d3 c6 9.Be3 Kf7 10.0-0 Nf6 11.Nc3 d6 Black would have had a slight edge. 

8.Nc3

The alternative was 8.d3

8...c6

Better than 8...Qg5 9.0-0 Ke5 10.f4+ Qxf4 11.Rxf4 Kxf4 12.Qf3+ Ke5 13.Qf5+ Kd4 14.Qd5 checkmate, perrypawnpusher - PunisherABD, blitz, FICS, 2009.

9.d3 Bb4

This looks like a normal move, but Rybka still recommends that the Black King retreat, returning material in the process: 9...Kc5 10.Qb3 Kd6 11.Bf4+ Ke7 12.Bg5+ Nf6 13.e5 d5 14.0-0 Kf7 15.exf6 gxf6 with about an even game.

10.Qh5 Nf6

It is hard to believe, but Black's only move to put off checkmate was 10...g5, following 11.Bxg5  with 11...Qxg5, giving up his Queen. Ouch!

11.Be3+ Kxd3 12.Qe2 checkmate